CN1096475C - α-烯烃/亚乙烯基芳烃单体和/或受阻的脂肪族或环脂族亚乙烯基单体的共聚体 - Google Patents
α-烯烃/亚乙烯基芳烃单体和/或受阻的脂肪族或环脂族亚乙烯基单体的共聚体 Download PDFInfo
- Publication number
- CN1096475C CN1096475C CN97198572A CN97198572A CN1096475C CN 1096475 C CN1096475 C CN 1096475C CN 97198572 A CN97198572 A CN 97198572A CN 97198572 A CN97198572 A CN 97198572A CN 1096475 C CN1096475 C CN 1096475C
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- China
- Prior art keywords
- alpha
- olefin
- monomer
- aromatic monomer
- interpolymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/02—Ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F232/00—Copolymers of cyclic compounds containing no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65908—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65912—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
- C08F4/65922—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
- C08F4/65927—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually bridged
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70886996A | 1996-09-04 | 1996-09-04 | |
US08/708,869 | 1996-09-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1232476A CN1232476A (zh) | 1999-10-20 |
CN1096475C true CN1096475C (zh) | 2002-12-18 |
Family
ID=24847497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN97198572A Expired - Fee Related CN1096475C (zh) | 1996-09-04 | 1997-09-04 | α-烯烃/亚乙烯基芳烃单体和/或受阻的脂肪族或环脂族亚乙烯基单体的共聚体 |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP0923612B1 (ja) |
JP (1) | JP2001500180A (ja) |
KR (1) | KR20000068424A (ja) |
CN (1) | CN1096475C (ja) |
AR (1) | AR009520A1 (ja) |
AT (1) | ATE237649T1 (ja) |
AU (1) | AU4181097A (ja) |
BR (1) | BR9711675A (ja) |
CA (1) | CA2264894A1 (ja) |
DE (1) | DE69721013T2 (ja) |
ES (1) | ES2197362T3 (ja) |
TW (1) | TW473503B (ja) |
WO (1) | WO1998009999A2 (ja) |
ZA (1) | ZA977907B (ja) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6111020A (en) * | 1994-09-02 | 2000-08-29 | The Dow Chemical Company | Crosslinked foams from blends of ethylene vinyl acetate and ethylene-styrene interpolymers |
DE19711339B4 (de) | 1996-03-19 | 2008-09-11 | Denki Kagaku Kogyo K.K. | Copolymer aus Ethylen und aromatischer Vinylverbindung, Verfahren zu dessen Herstellung, Formkörper daraus sowie Zusammensetzung umfassend das Copolymer |
TW412560B (en) | 1996-09-04 | 2000-11-21 | Dow Chemical Co | Compositions and adhesives comprising a substantially random interpolymer of at least one vinylidene and at least one vinylidene aromatic monomer or hindered aliphatic vinylidene monomer, and coextruded or laminated multilayer film and tape |
US6329479B1 (en) | 1997-04-17 | 2001-12-11 | Denki Kagaku Kogyo Kabushiki Kaisha | Transition metal compound as catalyst component for polymerization, aromatic vinyl compound-olefin copolymer having stereoregularity and method for its preparation by means of the transition metal compound as catalyst component |
US6262161B1 (en) | 1997-06-26 | 2001-07-17 | The Dow Chemical Company | Compositions having improved ignition resistance |
BR9908806A (pt) * | 1998-03-11 | 2001-12-18 | Dow Chemical Co | Estruturas e artigos fabricados tendo memóriade formato feitos de interpolìmeros de"alfa"-olefina/vinila ou vinilideno aromático e/oude vinila ou vinilo alifático impedido |
CN1298425A (zh) | 1998-03-11 | 2001-06-06 | 陶氏化学公司 | 混有工程热塑性塑料的α-烯烃单体与一种或多种乙烯基或亚乙烯基芳族单体和/或一种或多种位阻脂族或环脂族乙烯基或亚乙烯基单体的共聚体的热塑性组合物 |
KR20010022625A (ko) * | 1998-06-05 | 2001-03-26 | 고오사이 아끼오 | 공중합체, 이의 제조 방법 및 이를 포함하는 성형품 |
ATE287425T1 (de) | 1998-06-11 | 2005-02-15 | Dow Global Technologies Inc | Elastische filme aus alpha- olefin/vinylaromatischen- und/oder aliphatischen oder cycloaliphatischen vinyl- oder vinylidene- interpolymeren |
EP0970976B1 (en) * | 1998-07-10 | 2002-10-09 | Sumitomo Chemical Company, Limited | Copolymer, process for production thereof, and molded article thereof |
US6048909A (en) * | 1998-12-04 | 2000-04-11 | The Dow Chemical Company | Foams having increased heat distortion temperature made from blends of alkenyl aromatic polymers and alpha-olefin/vinyl or vinylidene aromatic and/or sterically hindered aliphatic or cycloaliphatic vinyl or vinylidene interpolymers |
US6187232B1 (en) | 1998-12-04 | 2001-02-13 | The Dow Chemical Company | Acoustical insulation foams |
US6231795B1 (en) * | 1998-12-04 | 2001-05-15 | The Dow Chemical Company | Soft and flexible foams made from blends of alkenyl aromatic polymers and alpha-olefin/vinyl or vinylidene aromatic and/or sterically hindered aliphatic or cycloaliphatic vinyl or vinylidene interpolymers |
CA2353884A1 (en) | 1998-12-08 | 2000-06-15 | Edward N. Knickerbocker | Mel-bondable polypropylene/ethylene polymer fiber and composition for making the same |
KR20000048377A (ko) * | 1998-12-25 | 2000-07-25 | 고오사이 아끼오 | 에틸렌-알케닐 방향족 화합물 공중합체, 이의 제조 방법및 이의 성형품 |
US6313252B1 (en) * | 1999-02-04 | 2001-11-06 | The Dow Chemical Company | Functionalized ethylene/vinyl or vinylidene aromatic interpolymers |
US6617410B2 (en) | 1999-02-11 | 2003-09-09 | Basell Polyolefine Gmbh | Propylene copolymers containing styrene units |
ITSA990005A1 (it) * | 1999-02-11 | 2000-08-11 | Univ Degli Studi Salerno | Copolimeri a base di propilene contenenti unita' stireniche |
AR022608A1 (es) * | 1999-02-17 | 2002-09-04 | Dow Chemical Co | Producto interpolimerico aromatico de alfa-olefina/vinilo o vinilideno y proceso para su elaboracion mediante sistemas catalizadores multiples |
KR20010006710A (ko) | 1999-03-01 | 2001-01-26 | 고오사이 아끼오 | 수축 필름 |
KR20000062690A (ko) | 1999-03-04 | 2000-10-25 | 고오사이 아끼오 | α-올레핀계 공중합체, 이의 제조방법 및 이를 포함하는성형품 |
WO2000060002A1 (en) * | 1999-04-02 | 2000-10-12 | General Electric Company | Compositions of an interpolymer and polyphenylene ether resin |
WO2000078831A1 (en) * | 1999-06-22 | 2000-12-28 | The Dow Chemical Company | Ethylene and/or alpha-olefin/vinyl or vinylidene aromatic interpolymer compositions |
KR20010049855A (ko) * | 1999-07-30 | 2001-06-15 | 고사이 아끼오 | 올레핀계 수지로 구성된 박층체 |
US6362270B1 (en) | 1999-08-12 | 2002-03-26 | The Dow Chemical Company | Thermoplastic compositions for durable goods applications |
US6524702B1 (en) | 1999-08-12 | 2003-02-25 | Dow Global Technologies Inc. | Electrical devices having polymeric members |
EP1218444A2 (en) | 1999-08-17 | 2002-07-03 | The Dow Chemical Company | Free-flowing polymer composition |
US6239242B1 (en) | 1999-08-21 | 2001-05-29 | Nova Chemicals Corporation | Vinylaromatic and olefin pseudoblock polymers |
US6417276B2 (en) | 2000-01-07 | 2002-07-09 | The Dow Chemical Company | Thermoformable ethylene/styrene interpolymer-based polymer blend film for three-dimensional transfer finish foil |
DE10003581A1 (de) | 2000-01-28 | 2001-08-02 | Bayer Ag | Metallorganische Verbindungen mit anellierten Indenyl Liganden |
US6160029A (en) * | 2000-03-08 | 2000-12-12 | The Dow Chemical Company | Olefin polymer and α-olefin/vinyl or α-olefin/vinylidene interpolymer blend foams |
US6649671B2 (en) | 2000-03-13 | 2003-11-18 | Dow Global Technologies Inc. | Concrete and process to make same |
JP2001294257A (ja) | 2000-04-12 | 2001-10-23 | Sumitomo Chem Co Ltd | 蓋 材 |
JP2004504467A (ja) | 2000-07-20 | 2004-02-12 | ダウ グローバル テクノロジーズ インコーポレイティド | アルケニル芳香族ポリマーとアルファオレフィン/ビニルまたはビニリデン芳香族インターポリマーとをブレンドして得られる発泡組成物 |
EP1370607A2 (en) | 2001-02-27 | 2003-12-17 | Dow Global Technologies Inc. | Fabricated articles prepared from blends of substantially random ethylene/propylene/vinyl aromatic interpolymers with polypropylene |
ATE327265T1 (de) * | 2002-04-12 | 2006-06-15 | Dow Global Technologies Inc | Copolymere mit niedrigem molekulargewicht aus ethylen und vinylaromatischen monomeren und anwendungen davon |
EP1834970B1 (en) * | 2006-03-15 | 2014-05-14 | Styrolution GmbH | A process for producing polyolefin-polyvinylaromatic-block copolymers |
US9796795B2 (en) | 2015-01-14 | 2017-10-24 | Exxonmobil Chemical Patents Inc. | Tetrahydroindacenyl catalyst composition, catalyst system, and processes for use thereof |
CN114685703A (zh) | 2015-04-20 | 2022-07-01 | 埃克森美孚化学专利公司 | 包含氟化物化的载体的催化剂组合物及其使用方法 |
CN107636029B (zh) | 2015-04-20 | 2020-05-22 | 埃克森美孚化学专利公司 | 包含氟化载体的催化剂组合物及其使用方法 |
US10787545B2 (en) * | 2015-12-09 | 2020-09-29 | Sabic Global Technologies B.V. | Process for the preparation of polyolefin-based graft copolymers comprising a first functionalized short chain branched polyolefin block and one or multiple polymer side chains |
KR101950462B1 (ko) * | 2016-02-24 | 2019-02-20 | 주식회사 엘지화학 | 올레핀 중합체 및 이의 제조 방법 |
WO2017192226A1 (en) | 2016-05-03 | 2017-11-09 | Exxonmobil Chemical Patents Inc. | Tetrahydroindacenyl catalyst composition, catalyst system, and processes for use thereof |
CN111732682B (zh) * | 2020-06-19 | 2022-12-23 | 浙江大学 | 一种高透光太阳能电池封装用交联型聚烯烃的制备方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2028120A1 (en) * | 1989-03-20 | 1990-09-21 | Toshinori Tazaki | Styrene copolymer and process for production thereof |
NZ235032A (en) * | 1989-08-31 | 1993-04-28 | Dow Chemical Co | Constrained geometry complexes of titanium, zirconium or hafnium comprising a substituted cyclopentadiene ligand; use as olefin polymerisation catalyst component |
TW294669B (ja) * | 1992-06-27 | 1997-01-01 | Hoechst Ag | |
CZ289538B6 (cs) * | 1993-06-24 | 2002-02-13 | The Dow Chemical Company | Kovový komplex, katalytická kompozice jej obsahující, její pouľití a způsob přípravy tohoto komplexu |
JP3189175B2 (ja) * | 1993-07-02 | 2001-07-16 | 出光興産株式会社 | 芳香族ビニル化合物共重合体の製造方法 |
US5576259A (en) * | 1993-10-14 | 1996-11-19 | Tosoh Corporation | Process for producing α-olefin polymer |
US5972822A (en) * | 1994-08-02 | 1999-10-26 | The Dow Chemical Company | Biscyclopentadienyldiene complex containing addition polymerization catalysts |
DE69512926T2 (de) * | 1994-09-02 | 2000-05-04 | The Dow Chemical Co., Midland | Wärmehärtbare elastomere |
EP0718323A3 (en) * | 1994-12-19 | 1998-01-14 | Sumitomo Chemical Company Limited | Ethylene type quaternary copolymer rubber |
-
1997
- 1997-09-03 AR ARP970104015A patent/AR009520A1/es not_active Application Discontinuation
- 1997-09-03 ZA ZA977907A patent/ZA977907B/xx unknown
- 1997-09-03 TW TW086112679A patent/TW473503B/zh active
- 1997-09-04 WO PCT/US1997/015559 patent/WO1998009999A2/en active IP Right Grant
- 1997-09-04 CN CN97198572A patent/CN1096475C/zh not_active Expired - Fee Related
- 1997-09-04 KR KR1019997001788A patent/KR20000068424A/ko not_active Application Discontinuation
- 1997-09-04 AU AU41810/97A patent/AU4181097A/en not_active Abandoned
- 1997-09-04 DE DE69721013T patent/DE69721013T2/de not_active Expired - Fee Related
- 1997-09-04 JP JP10512885A patent/JP2001500180A/ja not_active Ceased
- 1997-09-04 CA CA002264894A patent/CA2264894A1/en not_active Abandoned
- 1997-09-04 ES ES97939797T patent/ES2197362T3/es not_active Expired - Lifetime
- 1997-09-04 AT AT97939797T patent/ATE237649T1/de not_active IP Right Cessation
- 1997-09-04 EP EP97939797A patent/EP0923612B1/en not_active Expired - Lifetime
- 1997-09-04 BR BR9711675-0A patent/BR9711675A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO1998009999A2 (en) | 1998-03-12 |
AU4181097A (en) | 1998-03-26 |
DE69721013D1 (de) | 2003-05-22 |
ATE237649T1 (de) | 2003-05-15 |
CA2264894A1 (en) | 1998-03-12 |
TW473503B (en) | 2002-01-21 |
CN1232476A (zh) | 1999-10-20 |
AR009520A1 (es) | 2000-04-26 |
EP0923612A2 (en) | 1999-06-23 |
BR9711675A (pt) | 2002-01-02 |
WO1998009999A3 (en) | 1998-04-30 |
EP0923612B1 (en) | 2003-04-16 |
KR20000068424A (ko) | 2000-11-25 |
DE69721013T2 (de) | 2004-01-29 |
ES2197362T3 (es) | 2004-01-01 |
JP2001500180A (ja) | 2001-01-09 |
ZA977907B (en) | 1999-03-03 |
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